Wire-stitching machine



A. M. MOORE.

WIRE STITCHING MACHINE.

APPLICATION FILED MAY 21, I919.

1,389,?33. PatentedJune 7, 1921.

2 SHEETSSHEET I.

A. M. MOORE.

WIRE STITCHING MACHINE.

APPLICATION FILED MAY 21, ms.

1,3803%, Patented. J1me 7, 1921.

2SHEETS-SHEET 2.

umrEo stares PATENT oarce.

ALFRED M. MOORE, or MALDEN, MASSACHUSETTS, AsSiGNoE 'ro ALEEEE M. MOOREANE GEESTEE M. Moo E, COPARTNERS, DOING BUSINESS UNDER THE NAME ANDSTYLE or MOORE & COMPANY, or EVERETT, MASSACHUSETTS.

WIRE-STI'I'GHING I/IACHINE.

naeoasa. f

To all whom it may concern;

Be it known that l, ALFRED M. MOORE, a citizen of the United States,and. resident of Maiden, county of Middlesex, and Qommonwealth ofMassachusetts, have invented an Improvement in VVire- StitchingMachines, of which the following description, in connection withtheaccompanying drawings, is aspecification, like characters on thedrawings representing like parts.

This invention relates to wire stitching or stapling machines and itsobject is to pro; vide an improved construction for driving wirestaples, and particularly in goods of non-staple penetrating nature suchas metal, fiber, etc, 2'. 6., goods which, on account of their hardness,have been previously provided with apertures to receive the staple.

This invention also relates to an improved form of reinforced shoe shankmade by my novel construction above referred to and presently to bedescribed.

Wire-stitching machines for applying wire thread or staples to paper,cloth, leather, etc., are commonly used in the arts, but they have, sofar as I am aware no means for positively leading the staplelegs toaccurately predetermined points. It is impossible therefor to use themin connection with material hard enoughto break the legs or shanks ofthe staple owing to the fact that such material must be previouslyprovided with apertures and, unless the holes in the material are mademuch larger than is otherwise necessary, there is always danger that thestaples will strike the edge of the material and be bent down upon thematerial or broken instead of being driven through and fastened upon it.

To avoidthis difficulty I have invented a novel form of guide whichleads the legs of the staple accurately to predetermined points on thework or into the previously prepared openings therefor.

In the drawings of one embodiment of my invention,

Figure 1 is a front view of a portion of the head of a conventional form'of wire stitching machine equipped with my novel Specification ofLetters Patent.

.near its rear edge.

thread or staple guide, other parts broken lPatented June 7, 1921..

Application filed May 21, 1919. Serial No. 298,699.

pending head of the machine suitably sus-' pended by parts not shown,and broken away.

This head is channeled on its front face, Fig. 1, see dottedlines, toreceive a plunger 1, and, Fig. 2, carrying a hammer 2 at its lower end.

This plunger carries a cutter 3 at one side, Fig. 1, for severing thewire thread, as will be pointed out presently; Pivoted for backward andforward movement on the plunger 1, Figs. 1, 2, is a rider 4: carriedbythe arm 5, the rider having a beveled rear face 6 on which the staplerides after it is formed and during the time that it is fed downward tothe work. This rider is pressed rearwardly by the spring 7 at the propertime by means not shown, and which forms I no part of this invention tobring its arm 5 substantially in line with front plate 8 to receive thestaple.

The plunger 1, Fig. 2, also carries at its lower end a Staple carrier 9having a horizontal slot 10 therein into which the wire thread 11 isautomatically fed through the guide 35, and held while the legs areformed, as will be described.

The carrier 9 is thrust forward slightly by the spring 12 at the propertime to position the staple 0n the rider and the staple legs in theguides by means not shown, and not material in this application.

My novel work positioner and staple or thread guide, comprises a plate13, Figs. 3, 4, with a staple leg-forming shoulder 14c. In order toinsure the leading of the-wire thread freely into the a groove 16 Fig.5, in which the staple is her, the body or base being shown at 32, the Vpositioned by the carrier 9 and by whichit is guided to the work.

The plate 13 is cut away on its front face to form a depressed area 17to receive a suitable resilient member as a spring 18 which actsnormally to retain in extended position, see Figs. 3,4, the yieldingwork positioner and disappearing staple leg leader 19 which slidesvertically in a slot 20 and which has at its outer end a combined workpositioning and staple leg leading or guiding point 21'. There are twoof these plates 13, 13 one on each side of the plunger,

Fig. 1, each provided with a guiding point 21.

Beneath the head 1, Fig. 1, is a post 23 carrying a base 24, with aplate 25, and recessed at 26, Fig. 2, in which the staple or loop ispositioned to be acted upon by the anvil.

The anvil comprises two disappearing triangular members 27 pivoted tothe member 21 at 28 and adapted to be forced upward by links 29 actuatedby suitable mechanism, not shown, so that the faces 31 of the anvil willlie in the same horizontal plane and engage the work at its lower orunder side. The post 23 may be adjusted as to height for convenience andcarries guides 30 which are also adjustable.

While my novel guide may be used with advantage in any case where it isdesired to drive a staple into a piece of material at a predeterminedpoint, it is, as stated, particularly valuable where it is desired tostaple or stitch a piece of non-staple-penetrable material to a secondpiece of nonstaplepenetrable material, as metal, or to a piece of staplepenetrable material. T have found the same particularly useful forstapling leatherboard or the like shoe shanks to steel reinforcingmembers such as are shown in Fig. 6 which is a plan of suchmemreinforcing member of steel at 33, perforated at 34, the staple shownas having been applied thereto.

In use the operation of my invention is as follows, beginning with themovements of the parts just following the application of a staple. Atthis moment the point 21 of the work positioning, and staple leadingmember 19 will be just above the anvil 27, and the rider 4 will be justto the left of the point 21..

As the point 21 rises the rider 4c is fed rearwardly beneath the point21 until, when thread 11 Figs. 1, 2, is automatically fed from a spool,not shown, through the guide 35 and slot 10 until its end projects shownin Fig. 1. The plunger 1 then begins its downward travel, carrying withit the.

rider 4.

At once the cutter 3 on the left hand side of the machine, Fig. 1,severs the wire at the proper point and shoulders 14: on the guide 13and 13*, Fig. 3, engage the opposite extended ends of the severed wireand bend them down at right angles to the portion which remains in theslot 10 and which forms the head of the staple.

The carrier 9 is now thrust forward and the staple is positioned so thatits two legs are received by the grooves 16 in the guides 13, 13, andstraddling the rider 1, near the top of the bevel face 6.

As the plunger 9 travels downward with its rider 4 the latter graduallyis withdrawn from beneath the staple toward the left, Fig. 2, the top ofthe staple meanwhile riding downward on the bevel face 6, beneath theend of the hammer which is slotted to receive the head of the staple.Just before the work is reached the parts occupy the positionssubstantially as shown in Fig. 2.

In the meantime the work has been positioned by the operator beneath thestaple leading members 19 and the points 21 inserted into the previouslyprepared holes which are to receive the respective legs of the staple.

For convenience I have shown, Fig. 2,'

the lower end of one leg 36 as depending slightly below the point .21,as it might or might not be in practice according to the adjustment ofthe machine for producing a leg of certain length.

Obviously the two legs of the staple will now be directed along thegrooves 16 the lengthof the leaders '19 accurately into the holes 34 inthe reinforcing member 33 and as the staple is fed downward the anvilmembers 27, which meantime are forced up by their links 29, engage thelower face of the work and the staple legs are turned up against thebottom of the work by contact therewith of the upper faces 31 of themembers 27. As the staple leading members 19 engage the'work on theanvil 27 they yield upwardly against the springs 18 until they disappearand are on a level with the lower edge of the member 13 thus avoidingall danger of their being crushed between the work and plunger.

As the points 21 disappear upwardly within the members 13 and 13 thelower the staple so that the plunger can press it firmly against thegoods. The operation is then repeated as described. The rider 4 givessuflicient support to the staple so that it can be driven through thegoods 32 which are of staple penetrating material.

My novel shank comprises a body 32 of suitable material, asleatherboard, pasteboard, etc., and a reinforcing member 33 of anydesired material having the required strength and yielding quality, asspring metal. I

While metal reinforcing members have been used by tacking their ends tothe shank body, this construction has proven unsatisfactory becauseunder existing factory conditions, it has been impossible to tack theirends securely enough to insure their remaining in position withinpermissible cost limits. In other words the cost of so doing preventstheir use in competition with other forms of shanks.

It has been impossible to staple them as illustrated because there wasno known method of, nor machine for so doing. The reinforcing membermust first be provided With holes for the staple and the latter must ithen be applied to the shank and reinforcing member at a cost that willpermit the use of the shank in competition with others, even though ofinferior quality.

By stapling the two members intermediate their ends as illustrated theyare securely fastened, against either lateral or longitudinaldisplacement, and a shank is produced at a commercially usable cost.

Wooden reinforcing members will not answer the purpose of metal membersas they aretoo clumsy to be used in any but the cheapest shoes and thewood soon loses its resiliency.

While I have described one embodiment of my invention, I do 'not wish tobe limited to the precise details thereof beyond the terms of thespecification and claims.

Claims: Y

1. In a Wire stitching machine, means for feeding the thread, threadsevering means, means for forming the severed thread into a staple,staple leg leaders, guides for the staple legs adapted to lead them intosaid leaders, the leaders movable relative to the guides to lead thestaple legs to predetermined points in the work, and then retreat fromthe staple legs as they enter the work, and staple forcing'means.

2. In a Wire stitching machine, means for feeding the thread, threadsevering means, means for forming the severed thread into a staple,staple leg leaders, guides for the staple legs adapted to 'lead theminto said leaders, the leaders movable with the sta superior saldplates.

guides adapted to enter apertures in the work and to be retracted withinthe guides.

4. In a Wire stitching machine, staple forming means, movable guides forthe staple legs, and yielding staple leg guiding points carried by saidguides adapted to enter aperture-s in the work and guide the staple legsthereinto.

5. In a wire stitching machine, means for feeding the thread, threadsevering means, means for forming the severed thread into a staple,traveling guides for the staple legs, having relatively movable stapleleg leaders to travel in the guides and into the work with the staplelegs and then withdraw from the work.

6. A staple guide comprising plates with 'movable guides for the staplelegs, and yielding staple leg leaders carried by the guides to guide thestaple legs to points on the work.

7. A staple guide comprising plates having staple guiding means thereon,staple guiding points carried by said plates adapted to enter aperturesin non-staple penetrable work and guide the staple legs thereinto, andmeans to permit the staple leg guiding points to be retracted within 8.A staple guide comprising a plate with staple guiding means thereon, anda spring pressed staple leg leader movable relative thereto to receivethe staple leg therefrom and to enter the Work and lead the staple legthereinto.

9. A staple guide comprising plates with staple leg guiding means, meansfor forcing the guiding means toward the Work, and

yielding staple leg leaders on said guiding means to lead the staplelegs into the work and subsequently withdraw therefrom.

10. A staple guide comprising plates with staple guidlng'means thereon,and movable staple guiding leaders on said means adapted to receive thelegs of the staple at their ends, guide the staple ends to the work, andretire within the plates while the staple is entering the work. g

11. A staple guide comprising a plate with staple guidlng means thereonand a staple leg leader movable in the plate with the staple through artof its travel only.

12. A stap e guide comprising a plate with staple guiding means therein,and a relatively movable staple leading member adapted to receive thestaple near the upper end of the member and guide the staple to theWork, and retire Within the plate While the staple is entering the work,and a spring acting normally to hold said leading member in outwardposition.

13. A staple guide comprising the memhers 13, 13*, grooves 16 therein,staple leg nee s/ea leaders 19 movable in said plates, springs 18 forsaid staple leg leaders, the latter having the guiding points 21thereon. 10

In testimony whereof, l have signed my name to this specification.

ALFRED M. MooRE.

